Sewing machine presser foot



Mach 22, 1932.

Z. ROUTTENBERG SEWING MACHINE PRESSEH FOOT Filed Aug. 15,` 195o A .Bi-

Patented Mar. 22, 1932 ZACHARIA ROUTTENERG, OF LOS ANGELES, CALIFORNIASEWING MAcHINE rnnssER room` v Application led August 15, 1930. SerialNo. 475,425.

This invention relates to devices used yin sewing machines for pressingthe material down upon the shifter.

One of the objects of this invention is to provide a linked presserconsisting of parts pivotally interconnected and adapted to yield in itsfront end on hitting comparatively heavy material.

Another object is to provide such a yielding presser foot with a roller.

Another object is to facilitate a passing of material through the sewingmachine with the least of retard by the presser foot.

Other objects will appear from the following description and appendedclaim as well as from the accompanying drawings, in which-f Fig. 1 is afront elevation of a presser foot made inV parts pivotallyinterconnected to operate according to this invention.

Fig. 2 is a section on line 2 2 of Fig. 1.

Fig. 8 is detail front elevation of a roller of a slightly modified formwith spiral grooves.

The top end 4c is of normal design customarily used to attach thepresser foot to the presser bar of a sewing machine.

In the present case, however, this attachment is provided with a lowerportion 5 of block or cross-head form; while the presserfoot proper 6 ispivotally connected to this block portion 5 as indicated at 7.

Any material, such as cloth, is customarily passed under the presserfoot in the direction of the arrow 8, approaching first the front tip orend 9 of the presser foot, so that any Vunduly heavy or thick portion ofthe material, such as a seam, as, for instance, outlined at 10, wouldtend to raise this front end 9l in the direction of the arrow 11.

The friction of the cloth or material on the other hand would always besuiiicient to,

swing the pivotally connected presser foot around the pivot 7 to causeit to slide on the material whether the material is thin or thick,

regardless of the lifting and tilting action at the tip of the foot.

To eliminate any'excessive friction or to avoid any undue rearwardswinging of the presser foot, a roller 12 is turnably mounted on the pin13 in the presser foot with the lowermost point of its peripheryextending down sudiciently to rest on the'material, this point beingindicated atlt in Fig. 2.

The axis of the pin 13 is also suitably out of alignment with the centeror axis of the` pin 7 to facilitate a lifting of the presser foot withthe roller Lin a swinging movement around the lpin k7 in the directionof the arrow 11 in a similar manner as described above Frith respect tothe front tip 9 of the'presser 60 oot.

The periphery of the roller is preferably grooved as indicated at 15 toassure a turning of the roller at the slightest contact with thematerial. y

With certain material, a grooving in a slanting manneras indicated at 16in Fig. 3 is preferable. d l Having thus described my invention, Iclaim:

' In a presser foot, an attachment portion having a pivot centrally inits lower end, a foot portion pivotally connected to the attachmentportion having a supporting pinY with its axis ahead of saidpivot but inthe rear end of the foot portion, and a roller turnably mounted on saidpin inthe foot portion with the lowermost point of its peripheryextending beyond the underside of said foot portion and downsufficiently to contact with and engage any material passing under thepresser foot, th-e periphery of said roller being grooved. Y Y Y Intestimony that I claim the foregoing as my invention I have signed myname.

ZACHARIA ROUTTENBERG.

